Wget http auth incorrect username and password combination

I'm at a total loss as to why I'm getting Authorization failed messages when I try to perform basic HTTP auth using wget on an internal webpage.

I've been using this wget command to pull a csv file from an internal webpage for around 4 months on a daily basis without issues.

wget --user username --password "password" http://ift.tt/1MLEcmm

The site is not SSL and does prompt for credentials when visiting it with a web browser. I've verified that the credentials I am using in the call work in a browser to download the CSV.

I've tried modifying the wget command by adding the following additional flags:

--auth-no-challenge

I also changed the --username to --http-user and the password to --http-passwd but those options do not work either.

When I attempt the connection with wget I get a 401 Unauthorized Authorization failed message.

The site is sharepoint,and unless something recently changed this month with IIS that disables calls from wget, I cannot figure out for the life of me what changed...

Any help would be appreciated.